vendor: fuse-overlayfs-snapshotter v2.1.1, google.golang.org/grpc v1.69.4

[thaJeztah]

• relates to [WIP] testing updated snapshotters #5663

vendor: github.com/containerd/fuse-overlayfs-snapshotter v2.1.1

• Downgrade go-difflib and go-spew to tagged releases
• Remove references to io/ioutil package
• Bump github.com/containerd/containerd/v2 from 2.0.0 to 2.0.2
• Bump golang.org/x/net from 0.30.0 to 0.33.0
• Bump google.golang.org/grpc from 1.68.1 to 1.69.4

full diff: containerd/fuse-overlayfs-snapshotter@v2.1.0...v2.1.1

[thaJeztah]

This also the QEMU issue? (I restarted CI) https://github.com/moby/buildkit/actions/runs/13026746517/job/36337177986?pr=5689

=== FAIL: frontend/dockerfile TestIntegration/TestMultiPlatformProvenance/worker=containerd/frontend=gateway (2.54s)
    dockerfile_provenance_test.go:446: 
        	Error Trace:	/src/frontend/dockerfile/dockerfile_provenance_test.go:446
        	            				/src/util/testutil/integration/run.go:98
        	            				/src/util/testutil/integration/run.go:212
        	Error:      	Received unexpected error:
        	            	process "/dev/.buildkit_qemu_emulator /bin/sh -c echo \"ok-$TARGETARCH\" > /foo" did not complete successfully: exit code: 255
        	            	github.com/moby/buildkit/util/stack.Enable
        	            		/src/util/stack/stack.go:82
        	            	github.com/moby/buildkit/util/grpcerrors.FromGRPC
        	            		/src/util/grpcerrors/grpcerrors.go:204
        	            	github.com/moby/buildkit/util/grpcerrors.UnaryClientInterceptor
        	            		/src/util/grpcerrors/intercept.go:41
        	            	google.golang.org/grpc.(*ClientConn).Invoke
        	            		/src/vendor/google.golang.org/grpc/call.go:35
        	            	github.com/moby/buildkit/api/services/control.(*controlClient).Solve
        	            		/src/api/services/control/control_grpc.pb.go:88
        	            	github.com/moby/buildkit/client.(*Client).solve.func2
        	            		/src/client/solve.go:269
        	            	golang.org/x/sync/errgroup.(*Group).Go.func1
        	            		/src/vendor/golang.org/x/sync/errgroup/errgroup.go:78
        	            	runtime.goexit
        	            		/usr/local/go/src/runtime/asm_amd64.s:1700
        	            	failed to solve
        	            	github.com/moby/buildkit/client.(*Client).solve.func2
        	            		/src/client/solve.go:285
        	            	golang.org/x/sync/errgroup.(*Group).Go.func1
        	            		/src/vendor/golang.org/x/sync/errgroup/errgroup.go:78
        	            	runtime.goexit
        	            		/usr/local/go/src/runtime/asm_amd64.s:1700
        	Test:       	TestIntegration/TestMultiPlatformProvenance/worker=containerd/frontend=gateway